patch · April 15, 2026

Ultrakill Patch 17d Brings Cyber Grind QoL and Railgun Buffs

Ultrakill version 17 introduces Cyber Grind navigation updates, Deathcatcher cage adjustments, and safety buffers for core ejects. The update also tackles map geometry bugs, audio tweaks, and fish availability.

Version 17 for Ultrakill delivers a massive sweep of bug fixes, quality-of-life adjustments for the Cyber Grind, and foundational combat tweaks. Players will find smoother navigation in later levels and tighter feedback on high-end weapons.

Cyber Grind and Level Flow

The Cyber Grind friends leaderboard at the end of runs is now fully scrollable, and optimization has been improved for non-portal levels. Deathcatcher cages in wave completion now require 75% progress excluding the Deathcatchers themselves, meaning fewer side targets to hunt. If a cage spawns on top of you, the game teleports you above it instead of trapping you inside. Map exploits and geometry snags across level 8 and level 2-2 have also been patched out.

Weapon Handling and Core Mechanics

A buffer safety system has been added to the alt fires of the Core Eject Shotgun and SRS Cannon to prevent accidental zero-force projectiles when switching weapons. Ejected cores are no longer launched by non-Knuckleblaster explosions, and Malicious Face beams now trigger core eject nukes properly. Railguns and Electric/Malicious Railcannon electricity particles have received stability passes, and Size 2 fish are finally catchable.

Why this patch matters

Version 17 cleans up a tremendous backlog of community-reported bugs while smoothing out weapon inputs and Cyber Grind flow.